Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
  • A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/21—Esters, e.g. nitroglycerine, selenocyanates
  • A61K31/265—Esters, e.g. nitroglycerine, selenocyanates of carbonic, thiocarbonic, or thiocarboxylic acids, e.g. thioacetic acid, xanthogenic acid, trithiocarbonic acid
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/33—Heterocyclic compounds
  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
  • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
  • A61K31/519—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • A61K31/52—Purines, e.g. adenine
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/33—Heterocyclic compounds
  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
  • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
  • A61K31/519—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • A61K31/52—Purines, e.g. adenine
  • A61K31/522—Purines, e.g. adenine having oxo groups directly attached to the heterocyclic ring, e.g. hypoxanthine, guanine, acyclovir
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
  • A61P31/12—Antivirals
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P35/00—Antineoplastic agents
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P37/00—Drugs for immunological or allergic disorders
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P37/00—Drugs for immunological or allergic disorders
  • A61P37/02—Immunomodulators
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00

Definitions

• the invention relates to pharmaceutical formulations of xanthates in combination with inhibitors of viral nucleic acid replication and agents containing these formulations for the treatment of viral diseases.
• Xanthates especially tricyclodecane-9yl xanthate (D609), are known as substances with antiviral and antitumoral activity, e.g. from "DNA and RNA virus species are inhibited by xanthates, a class of antiviral compounds with unique properties" Sauer-G; Amtmann-E; Melber-K; Knapp-A; Muller-K; Hummel- K; Scherm-A, in Proc-Natl-Acad-Sci-USA. 1984 Jun; 81 (11): 3263-7; "Selective killing of tumor cells by xanthates" Amtmann-E; Sauer-G, in Cancer-Lett. 1987 Jun; 35 (3rd ): 237-44 and US Patent No 4, 602, 037.
• antiviral and antitumoral xanthates encounters the problem that relatively high active substance concentrations are required in order to be effective in the animal model. Since the concentration of the active ingredient is limited for both pharmacological and technical reasons, only a limited healing effect can be achieved even at the highest concentrations that can be used. The same problem affects common antiviral inhibitors such as acyclovir, valaciclovir or famciclovir.
• a combination of xanthate derivatives such as D609 with inhibitors of viral nucleic acid replication such as acyclovir leads to a synergistic increase in activity.
• concentrations of the xanthate up to five times the activity of aciclovir was observed in the cell culture.
• the combination of D609 and acyclovir was able to survive all animals infected with HSV-1 can be reached. Each active ingredient applied alone caused only partial healing.
• the present invention thus solves the above problem by providing a pharmaceutical formulation containing a xanthate and an inhibitor of viral DNA or RNA replication.
• the formulation contains a xanthate of the general formula I.
• R 1 represents an optionally substituted aryl or alkyl radical.
• Ri is preferably an adamantyl, norbornyl, tricyclodecyl, benzyl, straight or branched C 3 -C 2 o-alkyl, C 3 -C 2 o-cycloalkyl, furyl, pyridyl, anthracyl, naphthyl -, Phenanthryl, perinaphtyl or quinuclidinyl radical, the above-mentioned straight or branched C 3 -C 2 o-alkyl radical being substituted by a hydroxyl, a C 4 -C 4 alkoxy group, a halogen atom or an amino group and the above C 3 - C 2 o-Cycloalkylrest can also be substituted by a hydroxyl, a C 1 -C 4 alkoxy or a CrC 4 alkyl group, a halogen atom or an amino group.
• Ri particularly advantageous for Ri are cyclododecyl, dodecyl, undecyl, decyl, tricyclo [5.2.1, 2.6 ] decyl, nonyl, octyl, bicyclo [2.2.1] heptyl -, Cyclohexyl, Hexyl, Toluoyl residues. Very particularly advantageously an exo / exo-tricyclo [5.2.1.0 2 - 6] -decylrest.
• R2 represents a metal atom, an optionally substituted alkyl, alkoxy, amino or ammonium group or halogen.
• R2 represents a mono- or polyvalent metal atom, a straight C 1-8 alkyl radical, a C r C 6 substituted by hydroxy -Alkylrest, a C ⁇ C ß -alkoxy, an amino group, a a di (C 1 -C 6 alkyl) amino radical, a tri (C r C 6 alkyl) - ammonium radical, a halogen, 2,3-dihydroxypropyl or hydroxy- (C 1 -C 6 alkoxy) - methyl.
• Sodium and potassium salts and dimethylglycyl and methyl esters are particularly advantageous.
• the inhibitor of viral nucleic acid replication is preferably a nucleoside analog, and particularly advantageously bromodeoxyuridine (BudR), fluorodeoxyuridine (FudR), aciclovir, valaciclovir, penciclvir or famciclovir.
• the inhibitor of viral nucleic acid replication can also be an inhibitor of viral helicase.
• the inhibitor of viral nucleic acid replication can also be an inhibitor of a cellular enzyme.
• Formulations in which 0.1 to 10 parts of inhibitor of viral nucleic acid replication are contained per part of xanthate have proven to be very suitable.
• a ratio of xanthate to inhibitor of viral nucleic acid replication of 1: 1 is particularly advantageous.
• the formulation according to the invention preferably additionally contains an ionic detergent as an activity-enhancing adjuvant, as is described in US Pat. No. 4,851,435.
• a fatty acid with 6-19 C atoms or its salt is particularly preferred as adjuvant.
• the potassium salts of decanoic, undecanoic or lauric acid are particularly preferred.
• the activity-increasing adjuvant can also be a sulfate with an aliphatic radical of 8-18 C atoms. Na lauric sulfate is particularly preferred.
• Deoxycholic acid or a pharmaceutically acceptable salt thereof or a phosphonic acid is also suitable for the adjuvant.
• xanthate according to WO 96/14841 in lipid- or steroid-based carrier substances.
• the introduction into a carrier substance improves the tolerance of the agents.
• the carrier substance is in particular a steroid such as cholesterol, cholestanol, cholanic acid, chondrillasterol and ⁇ , ⁇ , ⁇ Sisterol.
• Xanthate and optionally adjuvant according to DE 101 17 728 are particularly preferably mixed with the carrier substance.
• Cholesterol is very particularly preferred.
• Also suitable as carrier substance are phospholipids, in particular phosphatidylcholine, phosphatidylserine,
• a formulation containing aciclovir, the Na or K salt of decanoic acid and the exo / exo-tricyclo [5,2,1,0 2 ' 6 ] -9yl-xanthate is particularly preferred.
• one part of xanthate contains one part of potassium salt of decanoic acid and one part of acyclovir.
• Another particularly preferred formulation contains phosphatidylcholine or cholesterol, the Na or K salt of decanoic acid, exo / exo-tricyclo [5.2.1, 0 2.6 ] -9yl-xanthate and acyclovir.
• one part of xanthate contains one part of decanoic acid, four parts of phosphatidylcholine or cholesterol and one part of acyclovir.
• the present invention further provides, according to claims 11 to 16, agents for the treatment of viral, tumor or autoimmune diseases which contain the pharmaceutical formulation.
• the compositions also contain customary carrier substances and / or customary auxiliaries.
• Other active ingredients can also be included, provided that they do not impair the action or the stability of the xanthates and the inhibitors of viral nucleic acid replication.
• Agents in the form of ointments are particularly preferred, a lipophilic substance being used as the ointment base.
• Vaseline is preferably used as the ointment base.
• the pharmaceutical formulations and agents containing them are suitable for the treatment of viral, tumor and autoimmune diseases.
• Human lung carcinoma cells (Calu-6) were infected with 30 plaque-forming units of herpes simplex virus (Type-1, strain ANG) in linbro plates. Two hours after the infection, cell culture media (MEM, with 10% fetal calf serum, 0.85 g / l sodium bicarbonate and 0.5% carboxymethyl cellulose), which was either 0, 5 or 10 ⁇ g / ml exo / exo-tricyclo [5.2 , 1, 0 2 ' 6 ] -9yl-xanthate (D609) was added. At the same time, the cultures were treated with acyclovir. All approaches were carried out four times. The cells were incubated for 48 h at 37 ° C under CO 2 (5%). After the medium had been tipped over, the cells were fixed with 3% formalin and stained with 0.5% crystal violet. After drying at room temperature, the number of plaques formed was determined.
• MEM herpes simplex virus
• FIG. 1 The results are illustrated in FIG. 1, in which the mean number of plaques is plotted against the concentration of acyclovir.
• the series without D609 is shown as squares, the series with 5 ⁇ g / ml D609 as circles and the series with 10 ⁇ g / ml D609 as triangles. It can clearly be seen that in the presence of concentrations D609 which are not effective on their own, the action of acyclovir starts at considerably lower concentrations at which acyclovir alone has no effect.
• D609 was mixed together with the same part by weight of potassium salt of decanoic acid and four parts by weight of cholesterol in a mortar. Then propylene glycol (final concentration 10%) and petroleum jelly were added so that a concentration of 5% D609 was reached. In the same way, ointments containing 5% acyclovir or 5% D609 and 5% acyclovir were prepared. A placebo ointment was prepared analogously, which contained neither of the two active ingredients.
• mice each (strain Balb-C) were shaved on the thigh and the skin was scored 6 times with a cannula on an area of 5x5 mm. Then were Apply 50 ⁇ l of an HSV-1 suspension (strain whale, 10 8 plaque-forming units / ml) with a cotton swab. Treatment was started four days after infection (twice daily). The symptoms “Spreading lesions”, “Paralysis of the hind legs” and survival were recorded.
• HSV-1 suspension strain whale, 10 8 plaque-forming units / ml
• FIGS. 2a to 2d The result is shown graphically in FIGS. 2a to 2d.
• the number of animals with the corresponding symptoms is plotted against the number of days after infection.
• Triangles indicate the surviving animals, squares the animals with paralysis of the hind legs and rhombuses the animals with spread lesions.
• the combination product is therefore significantly more effective than the individual products.
• With the combination preparation the survival of all animals as well as less symptoms and faster healing of the symptoms is achieved.

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• 2003
  • 2003-09-17 DE DE10343365A patent/DE10343365A1/de not_active Withdrawn
• 2004
  • 2004-09-09 JP JP2006526558A patent/JP2007505846A/ja active Pending
  • 2004-09-09 US US10/572,950 patent/US20060257432A1/en not_active Abandoned
  • 2004-09-09 EP EP04764981A patent/EP1663198A1/de not_active Withdrawn
  • 2004-09-09 CN CNA2004800269760A patent/CN1856302A/zh active Pending
  • 2004-09-09 AU AU2004279673A patent/AU2004279673A1/en not_active Abandoned
  • 2004-09-09 CA CA002539449A patent/CA2539449A1/en not_active Abandoned
  • 2004-09-09 WO PCT/EP2004/010044 patent/WO2005034934A1/de active Search and Examination

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